Writing instrument



FIG. 1 is a bottom, right front perspective view of a writing instrument showing our new design;

FIG. 2 is a bottom plan view of FIG. 1 drawn to an enlarged scale;

FIG. 3 is a top plan view of FIG. 1 drawn to an enlarged scale;

FIG. 4 is a rear elevational view of FIG. 1;

FIG. 5 is a front elevational view of FIG. 1;

FIG. 6 is a right side elevational view of FIG. 1, the left side being a mirror image thereof;

FIG. 7 is a bottom, right front perspective view of a second embodiment of our new design;

FIG. 8 is a bottom plan view of FIG. 7 drawn to an enlarged scale;

FIG. 9 is a top plan view of FIG. 7 drawn to an enlarged scale;

FIG. 10 is a rear elevational view of FIG. 7;

FIG. 11 is a front elevational view of FIG. 7;

FIG. 12 is a right side elevational view of FIG. 7, the left side being a mirror image thereof;

FIG. 13 is a bottom, right front perspective view of a third embodiment of our new design;

FIG. 14 is a bottom plan view of FIG. 13;

FIG. 15 is a top plan view of FIG. 13;

FIG. 16 is a rear elevational view of FIG. 13;

FIG. 17 is a front elevational view of FIG. 13; and

FIG. 18 is a right side elevational view of FIG. 13, the left side being a mirror image thereof. 

The ornamental design for a writing instrument, as shown and described. 